STMicroelectronics L99BM114-TR
Manufacturer No:
L99BM114-TR
Manufacturer:
STMicroelectronics
Package:
Description:
Multicell battery monitoring and balancing IC
Quantity:
In Stock :2624
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Shipped from：HK Warehouse
Expected Shipping：Tue, Jun 2 - Wed, Jun 3, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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L99BM114-TR Information
STMicroelectronics L99BM114-TR technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics L99BM114-TR.
- Type
- Parameter
- Operating Temp Min Celsius
- 105.0
- Operating Temp Max Celsius
- -40.0
- ECCN US
- EAR99
- ECCN EU
- NEC
- Packing Type
- Tape And Reel
- RoHS Status
- Grade
- Industrial
- Package Name
- TQFP 64 10x10x1.0
- Operating Temp Min Celsius
- 105.0
- Operating Temp Max Celsius
- -40.0
- Type
- Parameter
- ECCN US
- EAR99
- ECCN EU
- NEC
- Packing Type
- Tape And Reel
- RoHS Status
- Grade
- Industrial
- Package Name
- TQFP 64 10x10x1.0
Download datasheets and manufacturer documentation for STMicroelectronics L99BM114-TR.
The L99BM114 is a Li-ion battery monitoring and protecting chip for high-reliability industrial applications and energy storage systems. Up to 14 stacked battery cells can be monitored to meet the requirements of 48 V and higher voltage systems.
Each cell voltage is measured with high accuracy, as well as the current for the on-chip coulomb counting. The device can monitor up to 7 NTCs. The information is transmitted through SPI communication or isolated interface.
Up to 31 L99BM114 can be connected in a daisy chain and communicate with one host processor via the transformer or capacitive isolated interfaces, featuring high-speed, low EMI, long distance, and reliable data transmission. Passive balancing with programmable channel selection is offered in both normal and low power mode (silent balance).
The balancing can be terminated automatically based on internal timer interrupt. Nine GPIOs are integrated for external monitoring and control, up to 7 of them can be configured for pack temperature monitoring via NTC. The L99BM114 features a comprehensive set of fault detection and notification functions to meet system safety standard requirements.
- 4 to 14 series cells battery monitoring and balancing
- 64 V operating voltage
- Supports busbar connection without altering cell results
- Independent 16-bit voltage ADC for each channel with accuracy less than 2 mV
- 18-bit ADC current measurement with coulomb counter
- Fully synchronized current and voltage samples
- Intelligent diagnostic routine providing automatic failure validation. Redundant fault notification through both SPI Global Status Word (GSW) and the dedicated FAULT line
- 9 GPIOs, with up to 7 analog inputs for NTC sensing
- Internal passive balancing up to 200 mA. Possibility to drive external balancing transistors
- 2.66 Mbps isolated serial communication or up to 5 MHz SPI
- Two 5 V regulators supporting external load connection with 25 mA (VCOM) and 50 mA (VTREF) current capability
- Embedded NVM for customer parameters storage
- System safety ready
- 64-pin TQFP package
AIChipLink – Your Trusted Electronic Components Distributor
12.28 M
Listed Part Number
3,000+
Leading Manufacturers
4.9 M
In-stock SKU
15,000+
Warehouse Area(㎡)
